1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2018 Armadeus Systems
4  */
5 
6 #include <asm/arch/clock.h>
7 #include <asm/arch/mx6-pins.h>
8 #include <asm/arch/sys_proto.h>
9 #include <asm/gpio.h>
10 #include <asm/mach-imx/iomux-v3.h>
11 #include <asm/io.h>
12 #include <common.h>
13 
14 #ifdef CONFIG_VIDEO_MXS
15 #define LCD_PAD_CTRL ( \
16 	PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
17 	PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm \
18 )
19 
20 static iomux_v3_cfg_t const lcd_pads[] = {
21 	MX6_PAD_LCD_CLK__LCDIF_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
22 	MX6_PAD_LCD_ENABLE__LCDIF_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
23 	MX6_PAD_LCD_HSYNC__LCDIF_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
24 	MX6_PAD_LCD_VSYNC__LCDIF_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
25 	MX6_PAD_LCD_DATA00__LCDIF_DATA00 | MUX_PAD_CTRL(LCD_PAD_CTRL),
26 	MX6_PAD_LCD_DATA01__LCDIF_DATA01 | MUX_PAD_CTRL(LCD_PAD_CTRL),
27 	MX6_PAD_LCD_DATA02__LCDIF_DATA02 | MUX_PAD_CTRL(LCD_PAD_CTRL),
28 	MX6_PAD_LCD_DATA03__LCDIF_DATA03 | MUX_PAD_CTRL(LCD_PAD_CTRL),
29 	MX6_PAD_LCD_DATA04__LCDIF_DATA04 | MUX_PAD_CTRL(LCD_PAD_CTRL),
30 	MX6_PAD_LCD_DATA05__LCDIF_DATA05 | MUX_PAD_CTRL(LCD_PAD_CTRL),
31 	MX6_PAD_LCD_DATA06__LCDIF_DATA06 | MUX_PAD_CTRL(LCD_PAD_CTRL),
32 	MX6_PAD_LCD_DATA07__LCDIF_DATA07 | MUX_PAD_CTRL(LCD_PAD_CTRL),
33 	MX6_PAD_LCD_DATA08__LCDIF_DATA08 | MUX_PAD_CTRL(LCD_PAD_CTRL),
34 	MX6_PAD_LCD_DATA09__LCDIF_DATA09 | MUX_PAD_CTRL(LCD_PAD_CTRL),
35 	MX6_PAD_LCD_DATA10__LCDIF_DATA10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
36 	MX6_PAD_LCD_DATA11__LCDIF_DATA11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
37 	MX6_PAD_LCD_DATA12__LCDIF_DATA12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
38 	MX6_PAD_LCD_DATA13__LCDIF_DATA13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
39 	MX6_PAD_LCD_DATA14__LCDIF_DATA14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
40 	MX6_PAD_LCD_DATA15__LCDIF_DATA15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
41 	MX6_PAD_LCD_DATA16__LCDIF_DATA16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
42 	MX6_PAD_LCD_DATA17__LCDIF_DATA17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
43 
44 	MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)
45 };
46 
47 int setup_lcd(void)
48 {
49 	struct gpio_desc backlight;
50 	int ret;
51 
52 	enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
53 
54 	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
55 
56 	/* Set Brightness to high */
57 	ret = dm_gpio_lookup_name("GPIO4_10", &backlight);
58 	if (ret) {
59 		printf("Cannot get GPIO4_10\n");
60 		return ret;
61 	}
62 
63 	ret = dm_gpio_request(&backlight, "backlight");
64 	if (ret) {
65 		printf("Cannot request GPIO4_10\n");
66 		return ret;
67 	}
68 
69 	dm_gpio_set_dir_flags(&backlight, GPIOD_IS_OUT);
70 	dm_gpio_set_value(&backlight, 1);
71 
72 	return 0;
73 }
74 #endif
75 
76 #ifdef CONFIG_USB_EHCI_MX6
77 #define USB_OTHERREGS_OFFSET	0x800
78 #define UCTRL_PWR_POL		(1 << 9)
79 
80 int board_ehci_hcd_init(int port)
81 {
82 	u32 *usbnc_usb_ctrl;
83 
84 	if (port > 1)
85 		return -EINVAL;
86 
87 	usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
88 				 port * 4);
89 
90 	/* Set Power polarity */
91 	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
92 
93 	return 0;
94 }
95 #endif
96 
97 int opos6ul_board_late_init(void)
98 {
99 #ifdef CONFIG_VIDEO_MXS
100 	setup_lcd();
101 #endif
102 
103 	return 0;
104 }
105